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TLS Online TPP Program

#Question id: 13178

Turnover of water in temperate lakes during the spring and fall is made possible by which of the following? 

#Unit 10. Ecological Principles
  1. Warm, less dense water layered at the top
  2. Cold, more dense water layered at the bottom
  3. A distinct thermocline between less dense warm water and cold, dense water. 
  4. The density of water changes as seasonal temperatures change.
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TLS Online TPP Program

#Question id: 20322

#Unit 4. Cell Communication and Cell Signaling

What are autoinducers in quorum sensing?
TLS Online TPP Program

#Question id: 10921

#Unit 6. System Physiology – Plant

The mechanism of phloem translocation in angiosperms is best explained by which method?
TLS Online TPP Program

#Question id: 12236

#Unit 10. Ecological Principles

A  plant species arrives at  an  island  for the first time, where it  is  exposed to  a  new set of  pollinators.  Over the course of 20 generations, the characteristics of its flowers change. The figures above show the frequency distribution of petal length in the original colonizing population (Figure 1) and 20 generations later (Figure 2). Which of these explanations is consistent with the observed change in petal length?
TLS Online TPP Program

#Question id: 21395

#Unit 12. Applied Biology

The figure shown below is a block diagram of ________________ sensor?
TLS Online TPP Program

#Question id: 19481

#Unit 12. Applied Biology

In cry toxin at amino acid at which position is not conserved